refactor CuratorZookeeperRepository

[jacksparrow414]

Fixes #7883 .

Changes proposed in this pull request:

• Replace com.google.common.base.Charsets with java.nio.charset.StandardCharsets in CuratorZookeeperRepository.java

[codecov-io]

Codecov Report

Merging #7892 into master will increase coverage by 0.06%.
The diff coverage is 66.66%.

@@             Coverage Diff              @@
##             master    #7892      +/-   ##
============================================
+ Coverage     74.69%   74.76%   +0.06%     
- Complexity      537      552      +15     
============================================
  Files          1449     1503      +54     
  Lines         22739    26269    +3530     
  Branches       4063     4884     +821     
============================================
+ Hits          16986    19639    +2653     
- Misses         4658     5305     +647     
- Partials       1095     1325     +230     

Impacted Files	Coverage Δ	Complexity Δ
...pository/zookeeper/CuratorZookeeperRepository.java	73.72% <66.66%> (ø)	26.00 <1.00> (ø)
...here/sql/parser/engine/ast/ASTSQLParserEngine.java	0.00% <0.00%> (ø)	0.00% <0.00%> (ø%)
...ne/statement/standard/StandardSQLParserEngine.java	0.00% <0.00%> (ø)	0.00% <0.00%> (ø%)
...itor/statement/impl/OracleStatementSQLVisitor.java	73.93% <0.00%> (ø)	1.00% <0.00%> (?%)
...sql/visitor/format/impl/MySQLFormatSQLVisitor.java	0.00% <0.00%> (ø)	0.00% <0.00%> (?%)
...tatement/impl/SQLServerDALStatementSQLVisitor.java	0.00% <0.00%> (ø)	0.00% <0.00%> (?%)
.../visitor/format/impl/MySQLDALFormatSQLVisitor.java	0.00% <0.00%> (ø)	0.00% <0.00%> (?%)
...r/statement/impl/OracleDMLStatementSQLVisitor.java	85.29% <0.00%> (ø)	0.00% <0.00%> (?%)
...sql/visitor/PostgreSQLSQLVisitorFacadeFactory.java	66.66% <0.00%> (ø)	1.00% <0.00%> (?%)
...or/statement/impl/SQL92TCLStatementSQLVisitor.java	0.00% <0.00%> (ø)	0.00% <0.00%> (?%)
... and 47 more

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